Scale pivot-bearing.



PATENTBD SMN. SCLn 19045.

ALE PIVGT BEARNG Mmwwmm' FILED Nov. so. 19cm Ennuh",

PATENTED JAN. 30, 1906.

J. A. BARGLAY.

SCALE PIVOT BEARING.

APPLIGATION FILED Nov. so, 19o-i 2 SHEETS-SHEET 2.

i ZCI the beams mid leverii muy more eieiriewliiilz iii.

fio

Y enditlmil. will have rolling willem iixiirli the iin/.eid repented 4bei.freeing of lieiiiiis," fi-ml le 'ef the j )iveie im weil mi me limii'iiiagge, iiiiii lim/l',

JAMES fl. ll-l/"iliLULAY OF l.

No. aimee. l

Be .it known that I, Levine A. .lliilieiiiir :i Citizen of the 'Unit-ed Shiites, reselling at he (linnn polie7 in the county 0F Marien and Siete el' [miie mi., have invented new emi useful Imn pi'ereniexiii; in Seele livelleiiririge and .li ile ieelzire the Following le be ii. l'iiil, Meer; :mil exec?, deseripi/ieix el lille-i invention, :reference heilig had te the meeruiiziriyiiig drew-- ings, mill im iiflie lett/rire mid iligiires el refereuee marked themen, Wliieii ferm e part el' this s'peciicaiti-im.

This invention relates lue hee. .iiwim.' the pivote i' the beams amd .lei/ere el" Weighing- Fieeles, emi iii has reference ijiii'rlieulerly te self-adjusting m'itil'rictioiml 'liez'xiringe eilizqm ed te eu )port eepeeiully kii,il"e-e:ige ierins ei pivote ei the chere-eier Dimi, ere provided in sleale eensLrueieu. Y

@in 'the use ei" Het, bearings for Seele-pivots:

liiiifiramimlredini ilii'eeiiene wil/lient line/nein ing; uiiilnaiinnieed, mi 1in heme; ein iiiiviiiiiige im vere efforts have heretofore been mme te 'proviilf-x liefiriiige that will leisure eeiieteut, lmlzmee of the iieimas :mii .iev iiiiwrl el; lim :1eme time held. (5in-im. iii their primer imei* tiene, since by the use ei ile?, lieeriiiirs vers mui lieefme muy ellendige fiieir pee., .iiiev which .is aiu iiiiileeiiriilile reeiilix. .le erm eeuw the ilizlliciiitier.J eeiieiwe been e l li/sliiiiie bearings have been. eii'ii'iiiilyeii Home degree of fiilwiessi, rei mi iiiitllm u" i i bearings e, ixezmi muy fflii'iiige belli/lire il" i pivel; edge is l'iioveil slightly i'reiii lflie pesi-m ilimi. in which il, rested Wl'iexi. lie liemri wm.: lmliineed., mul this muy emziir 'Vi'lieii the pivot lis ibreed up en .ineiiiieilsiile elf the iieiiriiig, :mil especially ailier the knife-elige elf tile pivot iimy lieve become worn.;

i The object ef elle premi-ril, .iiiveiitiiiiii ii; lie oifereoine the (iifi'ieuliiee :ibeve referred. lie mid te provide lieiiringe limi erm-jy iriiiliriirf-.i the :iihianwieeee the fermer iiypee m" lieiirn ings Without iiielliiiling; their wi-iiilineeeei er faults, to pri'iviile [.iivot-benringe 'whieh will he seliiuljiisting, embodying bile virlnileii el flirt, bearings, peri'eiiing oi. the eheriieter ef Swinging bearings, that will eiiimeiiiie benen-y to sel/(21e inici( to their preper poeiiieile when swayed te either eide, kiwi will .mit rieuse seriiping sind W .r el the edggee el the iiiirelvi-.r

)ivob ewiger; mul. tlirrelr eene time ie the iil'e l i .y

i'eented Jim. 30, EMME.

"riivolx--l)euririge Llwit muy be employed. with eqiml. mivmiteges en etimd--supperts, in side lmielielis, .in loups, :mil iii suspended links.

'ifllie .invention emisiisbs iii the wmbmeiLiOH, with eeelefiiveige, el" iieiirin having' rolling eeriiiiel; with the pivele, rol ing eupperie foi" bile bearings, sind .nevel .housings ier the bearings.: will supporre; zirifi tiieiilvelit'ion co1 eiste, im. v4hei'i .iii the parte end wmlnabiens and iirriiiigements oi parte, es hereinafter pim Eieulii-rly ileseril'ieii, mid Iieinted out in the iiis Speei'iezitien, eli'irririg; te the drawings, .Figure 1 is a iiee'ftive "View el ii weig "ring-seele which Serves im illustrate lille alimenter of the appa mies wiivli which. the iiweiii'ieu is designed to be eerii'ieetiecl; liig. 2, a. treiieverei-.i eei'siiionel 'View eil .ii eeeli-wiieem and rin eieviiitieii ef a, iii-erntenWert; iiii'ving; lille ijii'iprevml bearings mi. emi el" erle 0i" the im- .ll'igjm Ji, mi eliymtmn (if im animiert, trimming giiie'veiil lbeiiriuge; iii-aile-lewii iifiviiig inegi tiri-wein; lig. 5, im. elm/:ihren el' tlie loep .wiwi el, righi exigir; te the view 'in File: 4; i, il. veriieiii eerilziiil eeeiiieniil View mi ille :i V iii iiig. "4, Vig' ,e vertical .szeeiieiml "WJ mi ll'w iin-e lili" if? iii 'liigz Al; .Fig` E, :i iiieei'iie'mil View mi lille line in .lfiiga 2; n il, :iii elevation mi hearing designed to iii used iii illu. miners el six-:kbpl:iilerm .iraiiiiii g, liiig. l0, mi ig-.iev'iilaien ei the hearing mliiiwii iii Fig, Si, 'viewed :il righi. :ingles time le; Fig. i l, :i side view el" mie el the im )reveil piviilelwiiiii eggs; iii ille limiriiiiggguifleeg i er, iii, :i verl/ien! ventral eeeliioriizl View similar im l-iigf. li 'wil-li the mnd iiiverieil emi. the iwiiriuifii having iililong riilleiesiiiimrle; Fig. .l.-"| :in emi View of mie ef new 5 Fig. IIT,` n .eide view el" one el the ulileilg reilerri; Vig. 10, :i ifriigil'ieiltairy i'ertii mi sectional. AView en ille iiiieY i." iii Fig. 13, mici .l*`ig.;. 1"( u. iside View ef one ef the bearings animal/eil te lie usiil witlrtlie oblmlg rollers.

Similar ielcrenre characters in the Several liguri@ ef liu," drawings designate correspond mg perle er features.

Iii ilu ili'iiwingii, (i ilesigliiites :ir scali-mink lerne i'i e. pii'uteii lever, e e wimeetiinif rml er liek: ci e similihmm. ff u Stilmi-bearing i-:iip i.ii;-lfiix|;.:; the llirziiv mijn imei-i emmeebimi between. iii@` .mr emi if .if i lieimiiimlilxeie stand-bearing e.

ro levers underthe platforms of the scales.

be arranged also as an upright stand or as a horizontal bracket-support, and the support shown in Fig. 16 may obviously be inverted.

The bearing-stand 'A comprises a suitable base and two upright arms g and g', and in the arms are supported the pivots 7ay and 7i of zo the beam d. The stand is designed to be secured by a screw-bolt 4 either upon or beneath a pillow-cap, and it ma y also be secured against a vertical support andzproject horizontall if required. One of th'e arms g is fitted etachably to the base of the stand and is secured by a screw-bolt 5 to the base. In the ends of the arms, which form housings, are circular bores i t', in which are arranged the bearings B and B of identical form, each bearing, as B, Fig. l i, being circular and hollow and having external grooves j j serving as ball-races, the bearing having a conical inner end 6 and also having a guideegroove r'. .`Balls l and m are interposed in the bores i and i between the walls thereof and the bearings in the ball-races thereof. Guides C Q are secured to the outer face ofthe arm g and extend into the guide-groove of the bearing B, and similar guides C2 C are provided for the companion bearing B', the guides being secured by screws n. The guides permit free movements of the bearings on the balls rota-tively while retaining the bearings in the bores of the arms. The conical ends (i provide thin edges, against which the sides of the beam may at times have Contact with the least amount of friction. T he diameters of the pivotsare somewhat less than theinternal di` ameters of the bearings, so that while the knife-edges of the pivots rest upon the inner walls of the bearings the bodies of the pivots may move in the bearings 1n response to the swaying of the beam during weighing opera tions.

In the clevis-form loop D are arrangedbearings B2 and B3 likr the bearing B. Une arm of the loo is adapted to be parted, hav ing a removab e end p, which binds an annular liningg in the bore of the arm, tire balls 'r running against the lining.

The loop E is attached to a link S and has a bearing B4, also like the bearing B, supported directly by balls t in the manner abovev dee scribed. The loop may su )port the. link or the link may support the loop, occasion mayv require, the latter relative arrangement being preferable.

it should be understood that while balls or splusricalE rollers are herein referred to the terni is intended to refer equally well to cylindrical or oblong rollers as the direct means of support for the pivot-bearings.

The cylindrical rollers a and a are shown in the which is substantially the same in form as the stand A. lfn the arms g and g of the support A are the bearings B5 and B, having each a broad groove jZ, in which the rollers are lguided, the bearings having also the guidegroove k to receive the guides, above dcscribed, that are attached to the arms.

ln practical use any portion of the inner wall of a bearing may support directly the pivotal contact7 since the bearings may ro tate and the point of contact will always be under a load in vertical plane. lf the beam or lever be moved sidewise, the' edges of the pivots may move slightly from their natural gravity positions, but must again gravitate thereto, thus preserving the balance, and when the pivots move laterally the bearings will roll under them, avoiding the scraping of the knife-edges of the pivots. l

Having thus described the invention, what is claimed as new is- 1. A veighing-scale including a housing, a knife-edge pivot in the housing, a bearing movable freely in the housing and having a curved bearing-surface in engagement with the knife-edge of the pivot, rollers cormmt'- v ing with theV housing and the bearing, and a lever or beam secured to the knife-edge pivot.

2. A weighing-scale .including a movable housing liaving an annular bearing mounted rnovably therein with rollers cooperating with the housing and the bearing, a V-shape pivotihaving the knife-edge thereof in con tact with the annular bearing, and a lever or beam secured to the pivot adjacent to the annular bearing.

3. A weighing-scale including a supported housing having a circular bore of uniform di- ,a1neter, an annular bearing movable in the bore of the housing andhaving a bore of uniform diameter, rollers between the exterior of the bearing and the wall of the housing and retained therein ly said bearing, means attached to the housing retaining the bearing therein, a knife-edge pivot having the edge thereofI in Contact with the bore of said bearing with a lever or beam secured to the pivot adjacent to and guided by said bearing, said bearing having a conical annular end presented to said lever or bea-m.

4. In aweighing-scale, an improved annular bearing having an unobstructed interior of uniform diameter and having a groove in the exterior thereof, the bearing being longer at the inner side vthan at the outer side thereof, in combination with rollers in said groove "Vo-arm drop-support A', Fig. l3,`

IOO

IIO

supporting the bearing inovebly, n, knife-r edge pvot engaging the interior of seid beer-- ing, end a lever or benin secured to the pivot adjacent to Athe bearing Withe projection thereof' eepereting with 'the onger poi-tion of seid bearing'.

5. In a, Weigiijngseele, the 'combination 'with a lever or benin and with eV knife-edge pivot tieieoi, of n housing le-ving.; oliers eooptimising' therewith, u, bef-Airing cooperating,

with the rollers of the housing' end having e curved bearing-surface in engagement with the knife-edge vof the pivot.

6. In e Weighing sen-le, the eonininziion with he levers and beams end the knifeed ge pivots thereof, of housings supported b the seele structure, bearings movable in the ousngs in engage ment with the knife-edges of the pivots and guiding the levers and beams, rollers in the housings supporting the bearings end retained therein by' the bearings, and means foi' retaining the bearings in the housings.,

In 'testimony whereof I affix my signature 'in piesenee of two Witi'iesses.

JAMES A. Ennemi;

Witnesses:

WM. H. PAYNE, F. T. Simms. 

